Card holder name restriction

[katina-anachkova]

Closes #1761

Motivation and context

Enhance the component's usability for individuals with varying levels of technical expertise by adding an onInput handler that removes non-letters, non-spaces, and non-hyphens, and replaces consecutive hyphens/spaces with a single character.

Screenshots:

Before	After

Testing

Steps to test

1. Go to a donation page
2. Choose card payment
3. Try adding numeric/other symbols in the name input field. Only Letters, spacing and hyphens should be allowed

Tested with different name combinations in regex 101 tool.

[github-actions]

❌ Not all tests have run for this PR. Please add the run tests label to trigger them.